E 2016 Pearson Education, Inc. B The figure shows two charged objects, A and B, and the electric field near each of the objects. The sign of the charge on object B is opposite the sign of the charge on object A. Which object has a positive charge? [Select] Near which object is the electric field stronger? [Select]
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2016 Fearson Education, Inc.
B
The figure shows two charged objects, A and B, and the electric field near each of the
objects. The sign of the charge on object B is opposite the sign of the charge on object A.
Which object has a positive charge? [Select]
Near which object is the electric field stronger? [Select]
→
L
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- Part A A downward electric force of 9.0 N is exerted on a -9.5 µC charge. Find the magnitude of the electric field at the position of this charge. Express your answer to two significant figures and include the appropriate units. HA N E = 9.47 10 Droio e Anaanrs Ponuns Aneam • Previous 神 hp W hp 15 f6 f7 f8 f9 f10 f11 F12 insertI Review I Com Two 10-cm-diameter charged disks face each other, 24 cm apart. The left disk is charged to -50 nC and the right disk is charged to +50 nC. Part C What is the magnitude of force F on a -1.5 nC charge placed at the midpoint? Express your answer to two significant figures and include the appropriate units. • View Available Hint(s) μΑ x" X•10" F = Value Units Submit Previous AnswersA small glass bead has been charged to +20.0 nC. A small metal ball bearing 3.00 cm above the bead feels a 1.10x10-2 N downward electric force. Part A What is the charge on the ball bearing? Express your answer with the appropriate units. ► View Available Hint(s) 92 = Submit μА Value Provide Feedback Units ?
- Two small identical conducting spheres are placed with their centers 0.42 m apart. One is given a charge of 10 ✕ 10-9 C, the other a charge of -14 ✕ 10-9 C. (a) Find the electrostatic force exerted on one sphere by the other. N(b) The spheres are connected by a conducting wire. Find the electrostatic force between the two after equilibrium is reached. NB1010 nC B. A -5 nC You wish to place a charge at A, which when released will move away from the two charges shown, and then determine the speed of the charge when it gets an infinite distance away from the two charges. The rectangle is 18.4 cm high and 21.9 cm wide. In order for the charge placed at A to move to infinity, you must use an electron a proton When released, approximately which direction will the charge initially accelerate? Image an analog clock face placed at A with 12 o'clock upward. toward ---Select--- v o'clock How fast will the charge be moving when it gets an infinite distance from the two charges? m/s
- Below is a depiction of one type of adjustable dial. This dial is essentially a thin rod with a charged sphere on the end, seated inside an electric field. The sphere between these plates has a charge of −2.3 µC and the thin rod can be approximated as a string with tension 0.350 N, at an angle of 15° as shown below. a) What is the mass of the charged ball? g b) What is the magnitude of the electric field between the plates?N/Ca. Two charges are separated by a distance of 5.0 cm. q1 has a charge of 4.0x10^-6 C and q2 has a charge of 2.8x10^-7 C. Locate the point(s) where a positive test charge could be placed to keep it in equilibrium.b. Sketch the electric field lines for this system of charges (*The screenshot diagram*).PART B